Human brain has unsuspected oxygen reserve, challenging previous theories
...cepted idea that blood flow increases occur during tasks such as reading to raise oxygen levels in the brain, says study leader Mark A. Mintun, M.D. That idea has been long assumed in brain imaging studies that attempt to understand how the human brain functions. Mintun is a professor of radiology and pro...UF researchers: rural residents less apt to seek Alzheimer's care from family doctors
...forgetfulness and difficulties with ordinary daily tasks could be signs of Alzheimer's were not receiving care for such problems. The study results, published in the current edition of the Journal of Behavioral Health Services and Research, underscore the need for better screening of symptoms, which in tu......experienced a deterioration in their ability to do tasks such as bathing, dressing and housework. However, the decline in the group receiving placebo for the first six months was more than double that of the group receiving Reminyl for the entire year. The Neuropsychiatric Inventory (NPI), which monitors...All food energy improves memory in elderly, study says
...er memory tests involving attention and non-verbal tasks showed variable effects, he says, suggesting that specific types of food energy enhance specific aspects of brain function. Further research is necessary to unravel the unique connections between each nutrient and brain region involved in memory. "Th...Neuroscientists searching for roots of empathy find brain regions involved in learning by imitation
...ht-handed male subjects were asked to perform five tasks involving small, different colored objects. Their ...watch the demonstrator copy them. The other three tasks were control experiments in which subjects were allowed to freely manipulate the objects any way the...Brief exercise improves mental performance in people with chronic lung disease
...lates to better performance on tasks like following directions, for example." The same group showed no improvement in other areas of cognitive performance. The healthy subjects didn't show cognitive improv...'Bird brains' take heart-our feathered friends are no slouch at cognition
BOSTON, MASS - Birds are remarkably adept at tasks involving communication, navigation, and certain t...governed behavior," the understanding that complex tasks must be done according to a certain order. Birds don't have a Broca's area, but it does seem that t...Sky-is-the-limit challenges have strongest effect on the heart
...rgraduate women were given either fixed or unfixed tasks involving scanning pages full of jumbled letters. Those in the fixed challenge group were instructed to circle the letter E each time they heard a tone. Those in the unfixed group were instructed to circle as many Es as they could for the duration of...Link found between kids sleep, behavior problems
...ior portion of the survey asked about attention to tasks and schoolwork, distraction, forgetfulness, fidgeting, inappropriate action and excessive talking, as well as other symptoms of attention-deficit hyperactivity disorder. The children were assigned scores based on the total number of attributes their ...Cholesterol bad for brain too, UCSF study says
... tests of cognitive function. The women completed tasks that measured their abilities in memory, attention, language, orientation, and visual-spatial skills. Women with the highest LDL-cholesterol levels, and those with the highest total cholesterol levels, had significantly poorer test scores, even afte...Clue to women's greater knee injury risk in basketball, soccer, volleyball
...hy and force-plate data to record three stop- jump tasks of ten women and ten men, recreational athletes ag...s per week in sports events that require stop-jump tasks such as basketball, soccer and volleyball but does not follow a professionally-designed training reg......likes and thinks she can do, then build upon those tasks to boost confidence, increase physical activity and promote physical fitness. Pender and Robbins want to encourage young people to exercise for a whole host of reasons, including developing behaviors they will carry with them into adulthood and comba...Different parts of the brain handle fantasy and reality
... journal Neuron.The study focused on two cognitive tasks widely used by experimental psychologists. One is ... which were mirror images for the mental rotation tasks and three which were slightly different but similar in appearance for the object recognition tasks. ...Testosterone aids older mens brains, UCSF study says
...parts of the brain that handle learning and memory tasks are replete with receptors for testosterone. In comparing scores, the researchers focused on bioavailable testosterone, which is not bound to the proteins, Yaffe said, because when the hormone is bound to protein it has essentially no effect on the...Kaleidescope eyes: the secrets of a novel gift
...hete controls as they performed a series of visual tasks to find out which areas of the brain are involved in synaesthesia. "When colors are elicited in a synaesthete, many areas of their brain are active. Our initial results, though, identified one consistent area known as the anterior cingulate that i...Drug reduces hallucinations and improves cognitive performance for Parkinson's patients
...with faster reaction times and better attention in tasks measuring numerical working memory and vigilance. Caregiver distress was also improved. We are encouraged by the fact that these benefits of rivastigmine therapy did not seem to come at the expense of patients motor control, said Reading. Further ...Multimillion-dollar grant to fund more research into speech disorder
...estigators will employ many tests and experimental tasks for children who stutter, for those who dont, and for parents of both groups. After the data are analyzed, We hope to have initial indications for differentiating among people who stutter, and for identifying risk factors for chronic, persistent stu...Brain-imaging cap under study for space and Earth use
...unction as it relates to performance of high-level tasks and in the event of possible illness or injury," s...function associated with performance of high-level tasks in real-life settings. Another feature is the system's potential for real-time evaluation of neurobe...Family history of hypertension is related to maladaptive behavioral responses
...stolic blood pressure go up more during the mental tasks and they also reacted with more negative verbal an...al and non-interpersonal laboratory-induced stress tasks than the PH participants. The nonverbal behaviors of the PH + group included more rolling of the ey...Estrogen may dictate what problem-solving strategy brain uses
...e faster completing a response-driven task. These tasks are believed to be controlled by different neural ...stems. What we found is that given these analogous tasks that require different cognitive strategies, estrogen biased the rats to use a place, or spatial, st...